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Thermodynamic and Transport Properties of Real Air Plasma in Wide Range of Temperature and Pressure

ISSN号：1009-0630
期刊名称：《等离子体科学与技术：英文版》
时间：0
分类：O414.1[理学—理论物理;理学—物理] TQ325.14[化学工程—合成树脂塑料工业]
作者机构：[1]State Key Laboratory of Electrical Insulation and Power Equipment, School of Electrical Engineering, Xi'an Jiaotong University, Xi'an 710049, China, [2]Electric Power Research Institute of State Grid Shaanxi Electric Power Company, Xi'an 710000, China
相关基金：supported by the National Key Basic Research Program of China （973 Program）（No. 2015CB251002）, National Natural Science Foundation of China （Nos. 51521065, 51577145）, the Science and Technology Project Funds of the Grid State Corporation （SGTYHT/13- JS-177）, the Fundamental Research Funds for the Central Universities, and State Grid Corporation Project （GY71-14-004）

作者：王春林[1], 吴翊[1], 陈喆歆[1], 杨飞[1], 冯英[2], 荣命哲[1], 张含天[1]

关键词：空气等离子体, 温度范围, 蒸汽压力, 输运性质, 热力学, 质量作用定律, 吉布斯自由能, 计算模拟, air plasma, thermodynamic properties, transport coefficients

中文摘要：

Air plasma has been widely applied in industrial manufacture. In this paper, both dry and humid air plasmas’ thermodynamic and transport properties are calculated in temperature300–100000 K and pressure 0.1–100 atm. To build a more precise model of real air plasma, over 70 species are considered for composition. Two different methods, the Gibbs free energy minimization method and the mass action law method, are used to determinate the composition of the air plasma in a different temperature range. For the transport coefficients, the simplified Chapman-Enskog method developed by Devoto has been applied using the most recent collision integrals. It is found that the presence of CO2 has almost no effect on the properties of air plasma. The influence of H2O can be ignored except in low pressure air plasma, in which the saturated vapor pressure is relatively high. The results will serve as credible inputs for computational simulation of air plasma.

英文摘要：

Air plasma has been widely applied in industrial manufacture. In this paper, both dry and humid air plasmas＇ thermodynamic and transport properties are calculated in temperature 300 100000 K and pressure 0.1-100 atm. To build a more precise model of real air plasma, over 70 species are considered for composition. Two different methods, the Gibbs free energy minimization method and the mass action law method, are used to deternfinate the composition of the air plasma in a different temperature range. For the transport coefficients, the simplified Chapman-Enskog method developed by Devoto has been applied using the most recent collision integrals. It is found that the presence of CO2 has almost no effect on the properties of air plasma. The influence of H2O can be ignored except in low pressure air plasma, in which the saturated vapor pressure is relatively high. The results will serve as credible inputs for computational simulation of air plasma.

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